How to make a permanent mold casting?

How to make a permanent mold casting?
Metal Die Casting - Overview | Science Direct Topics
Permanent mold casting is the process of producing a large number of castings using a single reusable mold. The casting process simply involves pouring molten metal into a mold, where it cools and solidifies. The mold is then opened, the casting is removed, and the mold is reused.